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Last Modified: 11-27-2007 1.6 C
Service Category: Brake Section: Brake Control/Dynamic Control System
Model Year: 2008 Model: LX570 Doc ID: RM000001EAB00NX
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)

DTC

C1268/68

Transfer "L4" Position Switch Circuit

DESCRIPTION

After confirming that the transfer is in the L4 position, CRAWL will be activated according to the vehicle conditions.

DTC Code

DTC Detection Condition

Trouble Area

C1268/68

The skid control ECU receives an L4 abnormal status signal from the four wheel drive control ECU.
  • Center differential lock detection switch
  • Center differential lock detection switch circuit
  • Four wheel drive control ECU
  • ECM

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

When replacing the master cylinder solenoid, perform zero point calibration BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION (2008 LX570) .

PROCEDURE

1.

CHECK CAN COMMUNICATION LINE

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and the Techstream on.

(d) Select "CAN Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN Bus.

OK:

"CAN Bus Check" indicates no malfunctions in CAN communication.

OK

2.

CHECK DTC (for CAN Communication System)

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and the Techstream on.

(d) Check for DTCs NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570) .

Result

Result

Proceed to

CAN system DTC is not output.

A

CAN system DTC is output.

B
A